4.10-stable review patch. If anyone has any objections, please let me know.
------------------ From: Herbert Xu <[email protected]> commit 016df0abc56ec06d0c63c5318ef53e40738dea8b upstream. This patch adds crypto_requires_off which is an extension of crypto_requires_sync for similar bits such as NEED_FALLBACK. Suggested-by: Marcelo Cerri <[email protected]> Signed-off-by: Herbert Xu <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- include/crypto/algapi.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -344,13 +344,18 @@ static inline struct crypto_alg *crypto_ return crypto_attr_alg(tb[1], type, mask); } +static inline int crypto_requires_off(u32 type, u32 mask, u32 off) +{ + return (type ^ off) & mask & off; +} + /* * Returns CRYPTO_ALG_ASYNC if type/mask requires the use of sync algorithms. * Otherwise returns zero. */ static inline int crypto_requires_sync(u32 type, u32 mask) { - return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC; + return crypto_requires_off(type, mask, CRYPTO_ALG_ASYNC); } noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size);
